Superheater.



PATENTED APB. 3, 1906.

N. NOTKIN; SUPERHEATER. APPLIUATION FILED sEPT.29. 1905.

loi,

"rrr

` Alt SUPIEWHETEH No. 816,993. Specification of Letters Patent. Patented April 3, 1906. Application filed September 29,1905. Serial No. 280,622.

To all, whmn, 7115 may concern: velops the superheating tube and passes Be it known that l, NAUM NOTKIN, a subthrough the inner tube thereof, and as the 5 5 ject of the Czar of' Russia, residing at Mossteam is conlined within comparatively cow, in the Empire of Russia, have invented small longitudinal channels in the supercertain new and useiul Improvements in Suheating tubes said steam is quickly and perheaters; and I do declare the following to thoroughly heated and circulated through be a full, clear, and exact description of the said channels. The steam enters between 6o invention, such as will enable others skilled the tubes 4 5. through the openin 10, and in the art to which it appertains to make and circulates within the channels 7 and emerges lo use the same. through the perforations l2.

My invention relates to superheaters; and Various changes in the form, proportion, one of the principal objects of the same is to and the minor details ol construction may be 65 provide means whereby the steam is conresorted to without departing 1from the prinfined within independent longitudinal chanciple or sacriiicing any of the advantages of 15 nels and in which the heated gases from the this invention.

furnace will surround said passages and su- Having thus described my invention, what perheat the steam. I clairn as new, and desire to secure byLetters 7o Another object is to provide a superheat- Patent, is#

inr-tube with ribs extending intermediate i.. A superheating-tube comprising an in eo an inner and outer tube and placing said tube ner tube and an outer tube, intermediate ribs within a hre-tube extending from the iire forming steam-channels, said tube being susbox oia `fire-tube boiler or within any smoliepended within a lretube leading from the 75 channel or smoke-box oiI an ordinary boiler, tire-hon, said tube being closed at its inner so that the| heat will entirely surround and ond and partially open at the outer end, and

e5 envelop the superheating-tube. means to admit steam to the one portion of These and other objects are attained by ite outer end and discharge the same on the means oi the crnistruction illustrated in the opposite portion of its outer end. 8o accompanying drawings, in which# t suporhoating tube comprising an Figure l is a longitudinal section oli a suouter tube haring a series oi longitudinal gre perheating-tube inclosed within a tire-tube. ribs extending' from its inner wall, a hollow llig. 2. is a cross-section on the line 2 i3 of lling. inner tube, eteain-chambers between the ribs l, and Fig. 3 is a sectional view ol a furnace and tubeasaid surierheating-tubes being sus 25 and showing the sul)erheatingtubes in end pended within a tiretube, or placed in any elevation. i sinolremhannel or smoke-bon, said superu Referring to the drawings Vfor a more par heating2g-tube boingl providedwith inlet-openi ticular description ol my invention, the nu ings near one end olf one portimnoiE the steamnierale l and 2 designate the walls olf a boiler, 1 chambers and discharge openings on the go' and 13 is a lireftubo loading from the lire-bor; saine cud in the oppoerte portion ol chain end l, ot thev boiler through one wall ol" the bers.

opposite side the-reni. tiusperuled within l auprnheaftir tube compi 'sing an inf and anoutri tube, intermediate ribs the 'lroetul' i il is a silprrlu'aitiunderlie roinl i in an ruiter tube and o hollow inner l rated `,traint-obsnuria, said tube or;

itibe l commet these inruil" and being thrilled within a lire-tube leading' tubos l nd lullin longitudlnul srruirw l troni thu llrz-lzror hl tube boing cloned at up* von be, to al' the lire intuir und, and upon at the upper portion l o1 i ter brui nd me; n; to wlmi" rt am its outer l rca ribs and tubes, said superheating-tubes being In testimony whereof I have hereunto set v suspended Within a fire-tube, said superheatmy hand in presence of two subscribing witing-tube extending through the ltire-tube and nesses.

provided With an inlet-opening near one end N AUM NOTKIN. of its upper portion, and discharge-openings Witnesses: near the lower portion of the same end, sub- FRANCIS B. KEENEj stantially as described. L. H. MUNIER. 

